Total spending on kayaking for 6 hours is the area of revenue rectangle given by P*Q= 16*6= $96.
Consumer surplus for kayaking at 6 hours is the area between the price of $16 and the demand curve ie the area of triangle given by =1/2*(40-16)*6= 72$.
Since his demand curve and marginal willingness to pay is the same, we can understand that his willingness to pay for 6 hours for 16$ per hour while for $40, he is not willing to have any hours of kayaking. His marginal willingness to pay is declining as he increases the hours and hence he is not willing to pay anything at 8 hours of kayaking.
Or in othe words, when the price is $0, only then he is willing to have 8 hours of kayaking.
Rental fee per hour $40 $$/ride MWTP-D curve 8 Hours of Kayaking for Kayaking 6 hours? What is the total spending fo...